mjpeg-streamer

On the Pi, you can run 'motion' and it will serve frames from the PiCamera to your LAN on URL http:\\:port (default port is 8080 however that's usually used for web pages :-) )
Frames will be 'imported' into iSpy using by adding the Pi Camera as an 'mjpeg URL' (http://:port/ = note Windows '/') with iSpy 5.7.4.0 64 bit.